November 2007
You all know the generally-accepted “biological” definition of a species – a population of interbreeding organisms. Toads don’t seem to be quite so clear about this. A new article in Science looks at inter-specific hybridisation, which in two species of toad appears to be linked to environmental conditions.
BBC summary, including videos of toads; original article in Science (you or your institution will need a subscription to get past the abstract).
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